"Stop talking nonsense and go, help Ymir, or deal with that demon," Fenrir ordered expressionlessly before looking at the other three divine beasts, who nodded at her. With a tacit understanding, all of them rushed toward Zarathunathis, who, while taking full advantage of having a powerful weapon, continuously threw blue-coloured sword slashes at them, beautifully showing the audience what it meant to bombard your enemy single-handedly.
Thankfully, just when Fenrir and the others were completely overwhelmed by his overpowered attacks, out of nowhere the bone dragon fell on top of Zarathunathis like a meteorite, burying him in the ground. And because his body was touched by the blue sword, it also received Ymir's ice-like premium service and turned into an ice statue.
BOOM!